... down the millpeck, and took his millstaff to prove the work he had done. This was made of well-seasoned oak, two pieces put together so that they should not warp. He rubbed the edge with ruddle, and, placing the millstaff on the stone, turned it about on its shorter axis: where the ruddle left its red mark more pecking would be required. There was but one small spot, and this he quickly put right. ... — Round About a Great Estate • Richard Jefferies
... by the official mining office at Trieste, was pronounced to be antimony! It was extracted from ruddle (red ochre) and limonite (brown ochre or hydrous oxide of iron): both are sesquioxides (Fe2O3) which become dark when heated and change to magnetic oxide (Fe3O4). M. Marie is probably the first who ever "ran down" iron oxide with lead. No wonder ... — The Land of Midian, Vol. 1 • Richard Burton
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